IMMUNOGLOBULIN E (IgE)

Test Documentation
Specimen Required
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Plasma: EDTA, heparin (sodium or lithium)
Serum: Red-top

Methodology
Fluorescent Enzyme Immunoassay

Stability
Room Temperature: Unacceptable; Refrigerated: 7 days; Frozen: 3 months

Reference Range
<7 days:   <5.2  
<4 months:   <9.2  
<7 months:   <16.4  
<10 months:   <22.6  
<13 months:   <29.2  
<3 years:   <51.7  
<4 years:   <72.0  
<5 years:   <90.0  
<6 years:   <108.0  
<7 years:   <126.0  
<8 years:   <142.0  
<9 years:   <160.0  
<10 years:   <176.0  
<11 years:   <192.0  
>=11 years:   <114.0  

Performed
Monday-Friday

Turnaround Time1-2 days
Test CodeIGE
CPT-4 Code (s)
82785
LOINC Codes
19113-0

Warde
Medical
Laboratory